摘要
本文研究了氨水介质中，痕量铁（Ⅲ）催化过氧化氢氧化罗丹明Ｂ褪色的新指示反应及其动力学条件，建立了动力学光度法测定痕量铁（Ⅲ）的新方法。方法的灵敏度为１．８２×１０￣（－１０）ｇＦｅ（Ⅲ）／ｍｌ，测定范围为０—０．８μｇＦｅ（Ⅲ）／２５ｍｌ。用于测定人发及水中痕量铁（Ⅲ），结果满意。
Trace iron in ammonia medium catalyzes the discolouring reaction that Rhodnline-B has been discoloured by peroxide hydrogen. A new method for the determination of trace Fe3+ is established by spectrophotometry. The sensitivity of the method is 1. 82×10-(10)g Fe3+/ml. The range of determination is 0-0.8μgFe3+/ 25ml. The method has been used satisfactorily for the analysis of water and human hair samples.
出处
《延安大学学报（自然科学版）》
1996年第3期45-48,共4页
Journal of Yan'an University：Natural Science Edition
关键词
催化反应
动力学光度法
铁
测定
Catalytic reaction,Kinetic spectrophotometry,Iron.
